At a very high level, the scripting part of the web platform is layered like this:
Credit: Stan Schroeder/Mashable
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纳税人以委托方式出口货物的，应当按照国务院税务主管部门的规定办理委托代理出口手续，由委托方按规定申报办理出口退（免）税、免征增值税或者缴纳增值税；未办理委托代理出口手续的，由出口货物的发货人按规定申报缴纳增值税。
It goes a bit deeper than that, but with the proliferation of things like Matter, the systems are getting smarter and simpler for consumers to understand. In the dark ages of consumer smart home tech, there was less standardization, so you had to shop around for everything to ensure that it worked with the other smart home tech you owned. You still have to do this today, but most smart home brands support the major smart home platforms like Google Assistant, Amazon Alexa, and Apple HomeKit.